Polygeneration: The extension of the principles of cogeneration(1) and trigeneration(2) , being respectively the simultaneous production of 2 and 3 types of energy. This principle is integrated in the generation of a minimum of 3 products, or chemical energy.

-Wikipedia

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Polygeneration: An integrated process which has three or more outputs, that include energy outputs, produced from one or more natural resources.

(1)Cogeneration (also combined heat and power, CHP): The use of a heat engine or a power station to simultaneously generate both electricity and useful heat.

(2) Trigeneration or trigen: The simultaneous production of mechanical power (often converted to electricity), heat and cooling from a single heat source such as fuel or solar energy. As with cogeneration, the "waste heat" byproduct that results from power generation is harnessed, thus increasing the overall efficiency of the system.

PolyGen Energy is deploying cost-effective, unsubsidized, polygeneration systems that will convert recycled carbon, from organic materials, or the atmosphere, into domestically-produced, logistically-compatible energy and other high-value products.